Comparison

Week Plan Calendar vs Inventar Manager

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Week Plan Calendar

A visually clear weekly calendar app that syncs with your device's native calendar and reminders. It offers multiple widgets for at-a-glance viewing and advanced configuration options for each calendar.

Highlights
  • Weekly overview with multi-day event clarity
  • Works with calendar events and reminders
  • Multiple widgets for iOS, iPadOS, and macOS
  • Lock screen widgets with live countdown
  • Analogue dial visualization of upcoming events
  • Yearly plan view and holiday calendar integration
  • Alerts for scheduling conflicts
Features
Read full description

A clearly designed calendar based on the classic weekly overview. No login required because the app works on the calendar/reminder data of the operating system. FEATURES - Multi-day events are shown upright on the right hand side, contributing to extraordinary high clarity. - Works with both calendar events and (checkable) reminders. - 4 for 1: iOS, watchOS, iPadOS and macOS App (Ventura + M1 required) can be used in parallel after download. - The "Today" widget shows upcoming entries (live countdown included) - The "Clockface" widget visualizes the events of the next 10 hours on an analogue dial. - All widgets also available on the lock screen. - Optional year plan view (incl. calendar weeks). - Event Templates + Shift Planner Mode - Integration of Apple Health menstruation cycle data. - Calculation of break times. - Alerts scheduling conflicts during creation of new events. - Watch app including complications "Today" & "Clockface". - Overview of all overdue reminders. - "holiday calendar": its entries make the days look like weekends - calendar day can be shown on app icon - combined view of event duplicates - (iOS, iPadOS): Speech entry of new events (iPhone needs to be hold to the ear) CONFIGURATION PER CALENDAR - Show in year plan - Show event locations - Cross-calendar appointment overlaps - Summary of consecutive events - Timeline in weekly and day views 10-DAY WEATHER FORECAST (premium feature) - available as yearly in-app subscription with auto-renewal - see privacy: https://www.pentabyte.de/applications/iOS/Wochenplan/ - see terms of use / EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DISCLAIMER - No notifications. Recommendation: continue to use the iOS calendar for reminders. This is generally the best way to do it because it also notifies you about changes to shared calendars in real-time.

About

Inventar Manager

Features
Read full description

Inventar Manager Everything that matters to you. In one place. Whether it's your home inventory, tech, tools, valuables or a personal collection – Inventar Manager helps you organize and document the things you own. Create different inventories, add your items with photos and important information, and quickly find what you're looking for later. YOUR THINGS. YOUR STRUCTURE. YOUR INVENTORY. Not every inventory is the same. That's why you decide which information matters for your things. Add your own custom fields and tailor each inventory to your personal needs – for example: • Vintage and rating for your wine collection • Manufacturer and serial number for tech • Location and purchase price for tools • Condition and category for collectibles Inventar Manager adapts to your things – not the other way around. ORGANIZE & FIND Create separate inventories for different areas and stay organized, even as your collection of items grows. With search and flexible filters, you can quickly find exactly what you need. PHOTOS, VALUES & DOCUMENTS Document your items with photos, descriptions, quantities, purchase prices and year of purchase. Add more information using your own custom fields and keep related PDF documents directly with each item. Important information, photos and documents all stay together. KEEP TRACK OF VALUES Add purchase prices and keep an eye not only on individual items, but also on the total value of your inventories. BACK UP & EXPORT Stay in control of your data. Create backups of your inventories and restore them whenever needed. Export your inventories as PDF or CSV files – for archiving, sharing or your own documentation. AT HOME ON YOUR APPLE DEVICES Use Inventar Manager on iPhone, iPad and Mac. With optional iCloud sync, your inventories stay up to date across your devices. Add an item on the go with your iPhone, update information comfortably on your iPad, or manage your inventories on your Mac. One inventory – across your devices. YOUR DATA STAYS YOURS. Inventar Manager doesn't require a separate user account and doesn't use your inventory data for personalized advertising. Your personal information about your possessions, collections, photos and documents should stay exactly where it belongs: with you. Whether you want to document your home inventory, keep track of your valuables, organize your tools or manage a personal collection: Inventar Manager gives everything you own its place. --------- PRIVACY Your data remains stored on your device unless you enable synchronization. LEGAL Privacy Policy: https://toja-apps.github.io/inventar-manager/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Week Plan Calendar4 screens
Inventar Manager4 screens

Verdict

The call

The clearest difference is iOS requirement: Week Plan Calendar at 17.6 against Inventar Manager's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Week Plan Calendar sells 1 in-app purchase, starting at $4.99 per year and Inventar Manager sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Week Plan Calendar ships an update every 2 weeks, Inventar Manager weekly. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard1 real difference · 9 level
Week Plan Calendar versus Inventar Manager: the parameters behind the verdict, then further details
ParameterWeek Plan CalendarInventar Manager
PriceFreeFree
Rating4.6 (33 ratings) — better—
Positive reviews94.4% of reviews—
Number of ratings33 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Mac
Requires iOS17.6 — better26.2
Further details — not scored
Size12 MB12 MB
Age rating4+4+
DeveloperMichael HoerethThomas Jakobs

In-app purchases

1 purchases

Week Plan Calendar

Subscriptions1
  • Weather Forecast for 1 Year1 Month trial$4.991 Year
2 purchases

Inventar Manager

Subscriptions2
  • Inventory Manager Pro (Monthly)$2.991 Month
  • Pro Version – Yearly$24.991 Year

Questions

Is Week Plan Calendar free?
Week Plan Calendar is free to download, with in-app purchases available.
Is Inventar Manager free?
Inventar Manager is free to download, with in-app purchases available.
Do Week Plan Calendar or Inventar Manager have ads?
Neither Week Plan Calendar nor Inventar Manager shows ads.
Which is updated more often, Week Plan Calendar or Inventar Manager?
Week Plan Calendar ships an update every 2 weeks, and Inventar Manager weekly. Most recently, Week Plan Calendar was updated on September 23, 2026 and Inventar Manager on September 17, 2026.

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